Exhaust pipe vibration isolation structure and vehicle

Abstract

The utility model discloses an exhaust pipe vibration isolation structure and a vehicle. The exhaust pipe vibration isolation structure comprises an auxiliary frame assembly and an exhaust pipe, the exhaust pipe is arranged above the auxiliary frame assembly; the buffering assembly comprises a connecting piece and a buffering piece, one side of the connecting piece is fixedly connected with the exhaust pipe, one end of the buffering piece is fixedly connected with the other side of the connecting piece, and the other end of the buffering piece is fixedly connected with the auxiliary frame assembly. The exhaust pipe is fixed to the auxiliary frame assembly through the buffering assembly, the buffering assembly and the exhaust pipe are not prone to generating resonance, vibration roar in a vehicle can be reduced, and the driving and riding experience of people in the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an exhaust pipe vibration isolation structure and a vehicle. Background Art

[0002] The vehicle exhaust pipe is used to discharge the exhaust gas from the engine combustion. Usually, an exhaust pipe hanger is used to ensure the stability of the exhaust pipe and reduce the vibration of the exhaust pipe and the noise generated.

[0003] However, the traditional exhaust pipe hanger is connected to the subframe assembly and the exhaust pipe through a hook. The hook has a low mode and is prone to resonance, causing vibration and roar in the car, affecting riding and driving comfort. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an exhaust pipe vibration isolation structure, which uses a buffer component to fix the exhaust pipe on the subframe assembly, which can reduce the vibration and roar in the car and improve the driving and riding experience of the passengers in the car.

[0005] According to the exhaust pipe vibration isolation structure of the first aspect of the utility model, it includes: a subframe assembly; an exhaust pipe, wherein the exhaust pipe is arranged above the subframe assembly; a buffer component, wherein the buffer component includes: a connecting member and a buffer member, wherein one side of the connecting member is fixedly connected to the exhaust pipe, one end of the buffer member is fixedly connected to the other side of the connecting member, and the other end of the buffer member is fixedly connected to the subframe assembly.

[0006] According to the exhaust pipe vibration isolation structure of the embodiment of the utility model, the exhaust pipe is fixed to the subframe assembly by using a buffer component. The buffer component is not easy to resonate with the exhaust pipe, which can reduce the vibration and roar in the car and improve the driving and riding experience of the people in the car.

[0007] According to some embodiments of the utility model, the connecting member includes: a base and a first bracket, the upper end of the base and the first bracket are interconnected, the lower end of the base and one end of the buffer member are fixedly connected, and the first bracket and the exhaust pipe are fixedly connected.

[0008] According to some embodiments of the utility model, the first bracket includes: two arc-shaped plates and a fastener, one end of the two arc-shaped plates is fixedly connected to the base and the fastener connects the other ends of the two arc-shaped plates, a receiving space is formed between the two arc-shaped plates, and the exhaust pipe is arranged in the receiving space.

[0009] According to some embodiments of the present invention, the arc-shaped plate is an elastic metal plate.

[0010] According to some embodiments of the utility model, the other end of the arc plate is provided with a flange, and the flange is provided with a mounting hole. The fastener passes through the mounting hole of one of the arc plates and is fixedly connected to the mounting hole of the other arc plate.

[0011] According to some embodiments of the present invention, the connecting member further includes: a second bracket, the second bracket is arranged at the upper end of the base, the second bracket and the first bracket are spaced apart from each other, and the second bracket abuts against the exhaust pipe.

[0012] According to some embodiments of the present utility model, a third bracket is provided on the sub-frame assembly, and the third bracket is fixedly connected to the other end of the buffer component.

[0013] According to some embodiments of the utility model, the third bracket includes: a limiting flange and a limiting column, the limiting flange is arranged on the outer side of the limiting column, and a second accommodating space for accommodating the buffer is defined between the limiting flange and the limiting column, and the other end of the buffer is arranged in the second accommodating space.

[0014] According to some embodiments of the present invention, the buffer member is a spring.

[0015] The vehicle according to the second embodiment of the utility model includes the exhaust pipe vibration isolation structure.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of the exhaust pipe vibration isolation structure according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 2 A partial schematic diagram in FIG.

[0020] Figure 3 It is a structural schematic diagram of a connecting piece according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 100. Exhaust pipe vibration isolation structure;

[0023] 10. Subframe assembly;

[0024] 20. Exhaust pipe;

[0025] 30. Buffer assembly; 31. Connector; 32. Buffer member; 33. Base; 34. First bracket; 35. Arc plate; 36. Flanged edge; 37. Mounting hole; 38. Second bracket; 39. Third bracket. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0027] Reference below Figure 1-3 An exhaust pipe vibration isolation structure 100 according to an embodiment of the present invention is described, and the present invention also provides a vehicle.

[0028] Reference Figure 1-2 As shown, the exhaust pipe vibration isolation structure 100 of the embodiment of the utility model includes: a subframe assembly 10 , an exhaust pipe 20 and a buffer component 30 .

[0029] The exhaust pipe 20 is arranged above the subframe assembly 10. The subframe assembly 10 is connected to the vehicle body and the suspension, and can carry the engine, transmission and suspension system, stabilize and enhance the overall structural strength of the vehicle. The exhaust pipe 20 can guide the exhaust gas generated by the engine combustion out of the vehicle, prevent the exhaust gas from accumulating in the vehicle, and ensure the safety of the driver and passengers.

[0030] The subframe assembly 10 and the exhaust pipe 20 are both located in the chassis area of ​​the vehicle. The exhaust pipe 20 is arranged above the subframe assembly 10. The exhaust pipe 20 can be fixed on the subframe assembly 10 to reduce the vibration of the exhaust pipe 20 and thus reduce the noise generated by the exhaust pipe 20.

[0031] The buffer component 30 includes: a connector 31 and a buffer component 32, one side of the connector 31 is fixedly connected to the exhaust pipe 20, one end of the buffer component 32 is fixedly connected to the other side of the connector 31, and the other end of the buffer component 32 is fixedly connected to the subframe assembly 10. The exhaust pipe 20 is fixed by the connector 31, and the buffer component 32 is fixed on the subframe assembly 10, so that the exhaust pipe 20 and the subframe assembly 10 can be fixedly connected. When the exhaust pipe 20 vibrates, the buffer component 32 is elastic, can absorb vibration energy, reduce vibration transmission, and effectively control and mitigate the impact of vibration on the interior of the vehicle. That is, the mode of the buffer component 30 is higher than that of the traditional hook structure, and it is not easy to resonate, thereby reducing the vibration roar in the vehicle and improving the driving and riding experience of the occupants.

[0032] Among them, mode refers to the specific mode or form exhibited by the structure when it vibrates. Each mode corresponds to a specific natural frequency and vibration shape. The structure with a lower mode is prone to resonance when the external excitation frequency is close, that is, the vibration of the exhaust pipe 20 can easily drive the hook structure to resonate. The resonance phenomenon will increase the original vibration amplitude, thereby causing structural fatigue damage. The vibration is transmitted from the exhaust pipe 20 to the car, causing the car to vibrate and roar. The buffer assembly 30 with a buffer 32 has a higher mode, is not easy to resonate, has a longer service life, and provides a better experience for the people in the car.

[0033] Therefore, the exhaust pipe 20 is fixed to the subframe assembly 10 by using the buffer assembly 30, and the buffer assembly 30 is not easy to resonate with the exhaust pipe 20, which can reduce the vibration and roar in the car and improve the driving and riding experience of the occupants.

[0034] Reference Figure 3 As shown, the connecting member 31 includes: a base 33 and a first bracket 34, the upper end of the base 33 and the first bracket 34 are connected to each other, the lower end of the base 33 and one end of the buffer 32 are fixedly connected, and the first bracket 34 and the exhaust pipe 20 are fixedly connected. Specifically, the first bracket 34 is used to fix the exhaust pipe 20, the first bracket 34 and the base 33 are fixedly connected and arranged at the upper end of the base 33, and the lower end of the base 33 is fixedly connected to one end of the buffer 32, so that the buffer assembly 30 and the exhaust pipe 20 can be fixed. That is, the installation order of the buffer assembly 30, the exhaust pipe 20 and the sub-frame assembly 10 from top to bottom is: exhaust pipe 20-first bracket 34-base 33-buffer 32-sub-frame assembly 10.

[0035] Reference Figure 3 As shown, the first bracket 34 includes: two arc plates 35 and fasteners, one end of the two arc plates 35 is fixedly connected to the base 33 and the fasteners connect the other ends of the two arc plates 35, and a receiving space is formed between the two arc plates 35, and the exhaust pipe 20 is arranged in the receiving space. The arc plates 35 can be semicircular, and the two arc plates 35 form a whole circular receiving space for receiving the exhaust pipe 20. The fasteners can fix the two arc plates 35, so as to limit the exhaust pipe 20 in the receiving space, and improve the firmness of the buffer assembly 30 and the exhaust pipe 20.

[0036] The fastener may be a bolt.

[0037] Furthermore, the arc plate 35 is an elastic metal plate. The elastic arc plate 35 can adapt to the slight deformation and vibration of the exhaust pipe 20 during use, thereby ensuring that the arc plate 35 can fit the exhaust pipe 20 closely, and can also absorb some vibration and impact, reduce the wear and fatigue of the exhaust pipe caused by vibration, extend the service life of the exhaust pipe 20 and the arc plate 35, and reduce the vibration in the car. Furthermore, the metal plate has good high temperature resistance and corrosion resistance, will not prematurely suffer fatigue damage in a high temperature environment, affecting the vibration control effect, and has a longer service life.

[0038] Reference Figure 3 As shown, the other end of the arc plate 35 is provided with a flange 36, and a mounting hole 37 is provided on the flange 36. After the fastener passes through the mounting hole 37 of one of the arc plates 35, it is fixedly connected with the mounting hole 37 of the other arc plate 35. The flange 36 is set at the position where the two arc plates 35 contact. The flange 36 can enhance the strength and rigidity of the edge of the arc plate 35, help resist the deformation caused by the tension or pressure applied by the fastener, and prevent the arc plate 35 from being damaged. In addition, the flange 36 increases the contact area between the fastener and the arc plate 35, and reduces the stress concentration at the mounting hole 37.

[0039] Reference Figure 3 As shown, the connector 31 further includes: a second bracket 38, which is disposed at the upper end of the base 33, the second bracket 38 and the first bracket 34 are spaced apart from each other, and the second bracket 38 abuts against the exhaust pipe 20. The second bracket 38 is used to support the exhaust pipe 20 and limit the position of the exhaust pipe 20 to prevent the exhaust pipe 20 from shifting, and the second bracket 38 is spaced apart from the first bracket 34 to balance the force on the base 33 and extend the service life of the connector 31.

[0040] In some embodiments, the second bracket 38 may not be provided to save costs, and the first bracket 34 is provided at the middle position of the base 33 .

[0041] Reference Figure 3 As shown, a third bracket 39 is provided on the sub-frame assembly 10, and the third bracket 39 is fixedly connected to the other end of the buffer 32. The third bracket 39 is used to fix the buffer 32 on the sub-frame assembly 10, and the connection method between the third bracket 39 and the sub-frame assembly 10 can be welding.

[0042] The third bracket 39 includes: a limiting flange and a limiting column. The limiting flange is arranged on the outside of the limiting column. A second accommodation space for accommodating the buffer 32 is defined between the limiting flange and the limiting column. The other end of the buffer 32 is arranged in the second accommodation space. The buffer 32 is installed on the inner side of the limiting flange and the outer side of the limiting column. The limiting flange and the limiting column have a certain height and extend in the vertical direction, so that the second accommodation space defined by the limiting flange and the limiting column forms a groove structure. The buffer 32 is installed in the second accommodation space. The height of the limiting flange and the limiting column can prevent the buffer 32 from moving around. Even if the vibration amplitude of the vehicle is large, the buffer 32 cannot leave the second accommodation space, thereby improving the reliability of the exhaust pipe vibration isolation structure 100.

[0043] Furthermore, the buffer member 32 may be a spring. The elasticity of the spring can absorb and store the energy generated by the vibration of the exhaust pipe 20, and the energy transmitted to other components is reduced by the elastic deformation of the spring, thereby effectively reducing the vibration amplitude. In addition, the spring has good fatigue resistance, can maintain stable performance during long-term repeated deformation, is easy to maintain and replace, and has low economic cost.

[0044] The vehicle according to the embodiment of the second aspect of the utility model includes an exhaust pipe vibration isolation structure 100 .

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An exhaust pipe vibration isolation structure, characterized in that: include: Subframe assembly; an exhaust pipe, the exhaust pipe being arranged above the subframe assembly; A buffer component, the buffer component comprises: a connecting member and a buffer member, one side of the connecting member is fixedly connected to the exhaust pipe, one end of the buffer member is fixedly connected to the other side of the connecting member, and the other end of the buffer member is fixedly connected to the subframe assembly.

2. The exhaust pipe vibration isolation structure according to claim 1, characterized in that: The connecting member includes: a base and a first bracket, the upper end of the base and the first bracket are connected to each other, the lower end of the base and one end of the buffer are fixedly connected, and the first bracket and the exhaust pipe are fixedly connected.

3. The exhaust pipe vibration isolation structure according to claim 2, characterized in that: The first bracket includes: two arc-shaped plates and a fastener, one end of the two arc-shaped plates is fixedly connected to the base and the fastener connects the other ends of the two arc-shaped plates, a receiving space is formed between the two arc-shaped plates, and the exhaust pipe is arranged in the receiving space.

4. The exhaust pipe vibration isolation structure according to claim 3, characterized in that: The arc-shaped plate is an elastic metal plate.

5. The exhaust pipe vibration isolation structure according to claim 3, characterized in that: The other end of the arc-shaped plate is provided with a flange, and a mounting hole is provided on the flange. The fastener passes through the mounting hole of one of the arc-shaped plates and is fixedly connected with the mounting hole of the other arc-shaped plate.

6. The exhaust pipe vibration isolation structure according to claim 2, characterized in that: The connecting member further includes: a second bracket, the second bracket is arranged at the upper end of the base, the second bracket and the first bracket are spaced apart from each other, and the second bracket abuts against the exhaust pipe.

7. The exhaust pipe vibration isolation structure according to claim 1, characterized in that: The sub-frame assembly is provided with a third bracket, and the third bracket is fixedly connected to the other end of the buffer.

8. The exhaust pipe vibration isolation structure according to claim 7, characterized in that: The third bracket includes: a limiting flange and a limiting column, the limiting flange is arranged on the outer side of the limiting column, and a second accommodating space for accommodating the buffer member is defined between the limiting flange and the limiting column, and the other end of the buffer member is arranged in the second accommodating space.

9. The exhaust pipe vibration isolation structure according to claim 1, characterized in that: The buffer member is a spring.

10. A vehicle, characterized in that: include: The exhaust pipe vibration isolation structure according to any one of claims 1 to 9.

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